Lightly tapping near the top of the phone causes a rattle sound that's driving me nuts. I took the back cover off and it's not coming from the SD card slot nor the power or the volume rocker. The sound seems to be around the camera lens area. There does seem to be an ever so slight vertical movement in the camera lens housing when moved with a fingernail. Applying slight upward pressure seems to lessen the rattle. My son has the AT&T version and his rattles too. A bit miffed here as a phone in this price range should not be making chassis noises. Phone is still within the 14 day warrantee period so it's back to Costco to see what they say. Anybody else is having this issue?